Postgres birthdays selection

Question

I work with a Postgres database. This DB has a table with users, who have a birthdate (date field). Now I want to get all users who have their birthday in the upcoming week.

Answer 1

I know this post is old, but I had the same issue and came up with this simple and elegant solution: It is pretty easy with age() and accounts for lap years... for the people who had their birthdays in the last 20 days:

SELECT * FROM c 
WHERE date_trunc('year', age(birthdate)) != date_trunc('year', age(birthdate + interval '20 days'))